GRAND RAPIDS -- As two young women recover from being raped and robbed last week in a Northeast side neighborhood, the ruthlessness of the assault became more clear Thursday.

The grandmother of one victim described her 21-year-old granddaughter's ordeal as she spoke about her recovery.

"The guy apparently grabbed her head and was pounding it into the pavement," she said. "it was brutal."

The two men police say are responsible for the assault -- identified through composite images released a day after the Sept. 14 attack -- were arraigned Thursday in Grand Rapids District Court.

Composite image of a rape suspect

Composite image of a rape suspect

Lucas Such, 18, and Gregory Quinn, 22, are charged with first-degree criminal sexual conduct and unarmed robbery. They are held in the Kent County Jail on bonds of $250,000.

Court documents show the victims, both in their early 20s, were robbed of jewelry during the assault. One also had her wallet stolen.

While the assault happened at 1:30 a.m. in darkness, the grandmother of the 21-year-old said the young woman managed to stay alert.

"She had a good look at both of them," she said.

The two victims are close friends and one of them had just moved into the Creston neighborhood area. They were walking along Plainfield Avenue NE near Spencer Street when they were attacked.

The grandmother said the assault caused some short term memory loss for her granddaughter and has been emotionally devastating.

"She kept holding her head and crying," she said.

Such and Quinn were caught after someone in the Creston neighborhood noticed the composite image and believed it strongly resembled one of the men.

Friends of the tipster then called Mac Brown, community safety organizer for the Creston Neighborhood Association. He had put up about 25 fliers in the neighborhood, showing the composite images.

Brown put the tipster in touch with a Grand Rapids police detective and the two men were arrested Tuesday.

"We tell our neighbors, go with your intuition. Don't sit on information, and let the police sort it out," Brown said. "That's what happened in this case. We were able to point the police in the right direction."

Grand Rapids police Capt. Jeff Hertel said composite images have varying degrees of success, depending on the crime and details given by victims.

"It brought us to the right doorstep in this case," he said. "I think there was enough details that this rang true to someone."

Crime scene technicians develop the composites using a computer software program that allows them to pick specific facial features.

Both Such and Quinn were living on Quimby Street NE, just blocks from the assault scene. Such has a juvenile record that includes convictions for malicious destruction of property, possession of marijuana and larceny from a person.